Petersen TD1, Balakrishnan G, Weeks CL.
Dalton Trans. 2015 Jul 28;44(28):12824-31. doi: 10.1039/c5dt01588j.Determining the mechanism of metal-organic framework (MOF) crystal growth is important for the development of more efficient and reliable synthetic methods. Resonance Raman spectroscopy has been used for the first time to detect interactions in solution between metal ions and bridging ligands as MOFs form. UV excitation (229 nm) produced strong resonance enhancement of 4,4'-bipyridine (bpy) vibrational bands and showed that soluble Co(2+)-bpy species formed in solution prior to the growth of MOF crystals from bpy and Co(NO3)2. Read More